Question

Mariah knows that 50% of sixth graders in her school have dogs. There are 45 sixth graders who have dogs. How many sixth graders attend Mariah's school.

Answer 1

90 kids are in mariahs school 50% is half so you multiply 45 by two

Answer 2

Graders which have dogs = 50%
Number of graders having dogs = 45
Let the total number of students be 'x'
So, the equation would be
50% of x = 45
50/100 × x = 45
x = 45×100/50
x = 90 students